package card;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class CardDemo {
    private String[] suits = {"♥", "♠", "♦", "♣"};

    public List<Card> buyCard() {
        List<Card> cardList = new ArrayList<>();

        for (int i = 0; i < 4; i++) {
            for (int j = 1; j <= 13; j++) {
                Card card = new Card(suits[i], j);
                cardList.add(card);
            }
        }

        return cardList;
    }

    public void shuffle(List<Card> cardList) {
        Random random = new Random();
        for (int i = cardList.size() - 1; i > 0; i--) {
            int index = random.nextInt(i);
            swap(cardList, i, index);
        }
    }

    private void swap(List<Card> cardList, int a, int b) {
        Card tmp = cardList.get(a);
        ;
        cardList.set(a, cardList.get(b));
        cardList.set(b, tmp);
    }

    public void getCard(List<Card> cardList) {
        List<Card> hand1 = new ArrayList<>();
        List<Card> hand2 = new ArrayList<>();
        List<Card> hand3 = new ArrayList<>();

        List<List<Card>> hands = new ArrayList<>();
        hands.add(hand1);
        hands.add(hand2);
        hands.add(hand3);

        //3个人轮流抓牌
        for (int i = 0; i < 5; i++) {
            //j代表人
            for (int j = 0; j < 3; j++) {
                Card card = cardList.remove(0);
                hands.get(j).add(card);
            }
        }
        System.out.println("第1个人揭牌如下：");
        System.out.println(hand1);
        System.out.println("第2个人揭牌如下：");
        System.out.println(hand2);
        System.out.println("第3个人揭牌如下：");
        System.out.println(hand3);

        System.out.println("剩下的牌如下：");
        System.out.println(cardList);
    }
}
